The general consensus is the top recorded speed for a steam locomotive is right around 200kph, by LNER class “A-4” No. 4468 (later British Rail 60022). The effort cracked one of its cylinders.
There is a group trying to build a new example of the Pennsylvania Railroad’s class T-1 (a slightly smaller engine superficially similar to the S1, but built in larger quantities) with the intent to try to break that record.
The S1’s claims are not validated.
The general consensus is the top recorded speed for a steam locomotive is right around 200kph, by LNER class “A-4” No. 4468 (later British Rail 60022). The effort cracked one of its cylinders.
There is a group trying to build a new example of the Pennsylvania Railroad’s class T-1 (a slightly smaller engine superficially similar to the S1, but built in larger quantities) with the intent to try to break that record.
this is true but also the S1 is the best steam locomotive